diff --git a/interfaces/iusbdevice.h b/interfaces/iusbdevice.h
index 9e904b1..b07be63 100644
--- a/interfaces/iusbdevice.h
+++ b/interfaces/iusbdevice.h
@@ -2,7 +2,6 @@
 #define IUSBDEVICE_H
 
 #include <stdint.h>
-#include <chrono>
 #include <vector>
 
 namespace noolitelib
@@ -17,7 +16,7 @@ public:
 
     virtual void openDevice(uint16_t vendorId, uint16_t productId) = 0;
     virtual void close() = 0;
-    virtual bool sendDataToDevice(const Data &data, std::chrono::milliseconds timeout) = 0;
+    virtual bool sendDataToDevice(const Data &data) = 0;
 };
 
 }
diff --git a/src/libusbdevice.cpp b/src/libusbdevice.cpp
index bf978f1..4ffcc2d 100644
--- a/src/libusbdevice.cpp
+++ b/src/libusbdevice.cpp
@@ -6,11 +6,13 @@
 namespace noolitelib
 {
 
+constexpr auto DefaultTimeout = 1000;
+
 LibUsbDevice::LibUsbDevice()
 {
     auto status = libusb_init(&m_context);
     if (status) {
-        std::cout << "Error initializing context: " << libusb_strerror(status) << std::endl;
+        std::cerr << "Error initializing context: " << libusb_strerror(status) << std::endl;
     }
 }
 
@@ -33,10 +35,10 @@ void LibUsbDevice::close()
     }
 }
 
-bool LibUsbDevice::sendDataToDevice(const Data &data, std::chrono::milliseconds timeout)
+bool LibUsbDevice::sendDataToDevice(const Data &data)
 {
     if (!m_device) {
-        std::cout << "Device not opened" << std::endl;
+        std::cerr << "Device not opened" << std::endl;
     }
 
     auto requestType = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_INTERFACE;
@@ -45,10 +47,10 @@ bool LibUsbDevice::sendDataToDevice(const Data &data, std::chrono::milliseconds
     unsigned char package[data.size()];
     std::copy(data.begin(), data.end(), package);
 
-    auto status = libusb_control_transfer(m_device, requestType, request, 0, 0, package, data.size(), timeout.count());
+    auto status = libusb_control_transfer(m_device, requestType, request, 0, 0, package, data.size(), DefaultTimeout);
 
     if (status) {
-        std::cout << "Sending data error: " << libusb_strerror(status) << std::endl;
+        std::cerr << "Sending data error: " << libusb_strerror(status) << std::endl;
         return false;
     }
 
diff --git a/src/libusbdevice.h b/src/libusbdevice.h
index aebbd60..f02eed0 100644
--- a/src/libusbdevice.h
+++ b/src/libusbdevice.h
@@ -17,7 +17,7 @@ public:
 
     void openDevice(uint16_t vendorId, uint16_t productId) override;
     void close() override;
-    bool sendDataToDevice(const Data &data, std::chrono::milliseconds timeout = std::chrono::seconds(1)) override;
+    bool sendDataToDevice(const Data &data) override;
 
 private:
     libusb_context *m_context = nullptr;
diff --git a/src/noolite.cpp b/src/noolite.cpp
index 193c52d..5be55d6 100644
--- a/src/noolite.cpp
+++ b/src/noolite.cpp
@@ -13,6 +13,17 @@ constexpr auto PID = 0x05df;
 
 }
 
+namespace
+{
+
+constexpr char WorkMode = 0;
+constexpr char Bitrate = 2;
+constexpr char Repeats = 2;
+
+constexpr auto Mode = (Repeats << 5 | Bitrate << 3 | WorkMode);
+
+}
+
 Noolite::Noolite(IUsbDevice *device) :
     m_device(device ? device : new LibUsbDevice())
 {
@@ -25,14 +36,32 @@ Noolite::~Noolite()
     delete m_device;
 }
 
-bool Noolite::sendCommand(int channel, Command command, Params params)
+bool Noolite::sendCommand(unsigned char channel, Command command, const Params &params)
 {
-    (void) channel;
-    (void) command;
-    (void) params;
+    auto data = composeCommand(channel, command, params);
+
+    if (data) {
+        return m_device->sendDataToDevice(data.value());
+    }
 
     return false;
 }
 
+std::optional<Data> Noolite::composeCommand(unsigned char channel, Command command, const Params &params) const
+{
+    if (noolitelib::Set == command && !(params.size() == 1 || params.size() == 3)) {
+        return {};
+    }
+
+    unsigned char format = (noolitelib::Set == command) ? params.size() : (command > noolitelib::Bind ? 0x04: 0x00);
+
+    Data res { Mode, static_cast<unsigned char>(command), format, 0x0, channel, 0x0, 0x0, 0x0 };
+    for (int i = 0; i < params.size(); ++i) {
+        res[5 + i] = params[i];
+    }
+
+    return res;
+}
+
 }
 
diff --git a/src/noolite.h b/src/noolite.h
index f7ca23f..6a517fa 100644
--- a/src/noolite.h
+++ b/src/noolite.h
@@ -2,6 +2,7 @@
 #define NOOLITE_H
 
 #include <vector>
+#include <optional>
 
 #include "interfaces/iusbdevice.h"
 
@@ -37,10 +38,12 @@ public:
     Noolite(IUsbDevice *device = nullptr);
     ~Noolite();
 
-    bool sendCommand(int channel, Command command, Params params = Params());
+    bool sendCommand(unsigned char channel, Command command, const Params &params = Params());
 
 private:
     IUsbDevice *m_device;
+
+    std::optional<Data> composeCommand(unsigned char channel, Command command, const Params &params) const;
 };
 
 }
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 085a2db..5a8a4e6 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -4,7 +4,7 @@ project(adapter LANGUAGES CXX)
 
 enable_testing()
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 include(FetchContent)
diff --git a/tests/mocks/usbdevicemock.h b/tests/mocks/usbdevicemock.h
index a55dfd6..da6e13d 100644
--- a/tests/mocks/usbdevicemock.h
+++ b/tests/mocks/usbdevicemock.h
@@ -10,7 +10,7 @@ class UsbDeviceMock : public noolitelib::IUsbDevice
 public:
     MOCK_METHOD(void, openDevice, (uint16_t, uint16_t), (override));
     MOCK_METHOD(void, close, (), (override));
-    MOCK_METHOD(bool, sendDataToDevice, (const noolitelib::Data &data, std::chrono::milliseconds), (override));
+    MOCK_METHOD(bool, sendDataToDevice, (const noolitelib::Data &data), (override));
 };
 
 #endif // USBDEVICEMOCK_H
diff --git a/tests/tst_adapter.cpp b/tests/tst_adapter.cpp
index 42b96a2..89fe8e1 100644
--- a/tests/tst_adapter.cpp
+++ b/tests/tst_adapter.cpp
@@ -25,8 +25,8 @@ TEST(noolite, sendCommand_Off)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x0, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::Off));
@@ -38,8 +38,8 @@ TEST(noolite, sendCommand_DecreaseBrightnes)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x01, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x01, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::DecraseBrightnes));
@@ -51,8 +51,8 @@ TEST(noolite, sendCommand_On)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x02, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x02, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::On));
@@ -64,8 +64,8 @@ TEST(noolite, sendCommand_IncreaseBrightnes)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x03, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x03, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::IncreaseBrightnes));
@@ -77,8 +77,8 @@ TEST(noolite, sendCommand_Switch)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x04, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x04, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::Switch));
@@ -90,8 +90,8 @@ TEST(noolite, sendCommand_InvertBrightnes)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x05, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x05, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::InvertBrightnes));
@@ -103,8 +103,8 @@ TEST(noolite, sendCommand_Set_OneChannel)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x06, 0x01, 0x0, 3, 0x2A, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x06, 0x01, 0x0, 3, 0x2A, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::Set, noolitelib::Params{ 42 }));
@@ -116,8 +116,8 @@ TEST(noolite, sendCommand_Set_ThreeChannels)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x06, 0x03, 0x0, 3, 0x28, 0x29, 0x2A };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x06, 0x03, 0x0, 3, 0x28, 0x29, 0x2A };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::Set, noolitelib::Params{ 40, 41, 42 }));
@@ -129,7 +129,7 @@ TEST(noolite, sendCommand_Set_BadArguments)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    EXPECT_CALL(*usbDevice, sendDataToDevice(_, _)).
+    EXPECT_CALL(*usbDevice, sendDataToDevice(_)).
         Times(0);
 
     EXPECT_FALSE(adapter.sendCommand(3, noolitelib::Set));
@@ -143,8 +143,8 @@ TEST(noolite, sendCommand_CallScenario)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x07, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x07, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::CallScenario));
@@ -156,8 +156,8 @@ TEST(noolite, sendCommand_SaveScenario)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x08, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x08, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::SaveScenario));
@@ -169,8 +169,8 @@ TEST(noolite, sendCommand_Unbind)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x09, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x09, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::Unbind));
@@ -182,8 +182,8 @@ TEST(noolite, sendCommand_StopColorSelection)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0A, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x0A, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::StopColorSelection));
@@ -195,8 +195,8 @@ TEST(noolite, sendCommand_Bind)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0B, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x0F, 0x0, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::Bind));
@@ -208,8 +208,8 @@ TEST(noolite, sendCommand_ColorSelection)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0C, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x10, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::ColorSelection));
@@ -221,8 +221,8 @@ TEST(noolite, sendCommand_ColorSwitch)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0D, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x11, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::ColorSwitch));
@@ -234,8 +234,8 @@ TEST(noolite, sendCommand_ModeSwitch)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0E, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x12, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::ModeSwitch));
@@ -247,8 +247,8 @@ TEST(noolite, sendCommand_EffectSpeed)
 
     noolitelib::Noolite adapter(usbDevice);
 
-    noolitelib::Data expectedData{ 0x30, 0x0F, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
-    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData, std::chrono::milliseconds())).
+    noolitelib::Data expectedData{ 0x50, 0x13, 0x04, 0x0, 3, 0x0, 0x0, 0x0 };
+    EXPECT_CALL(*usbDevice, sendDataToDevice(expectedData)).
         WillOnce(Return(true));
 
     EXPECT_TRUE(adapter.sendCommand(3, noolitelib::EffectSpeed));